Coal-separator



Iln'irnn raras FREDERICK II. EMERY, OF SORANTON, PENNSYLVANIA.

COAL-SEPARATOFI.

SPECIFICATION forming part of Letters Patent No. 579,569, dated March30, 1897.

Application filed 111116 l, 1896, Serial N0. 593,847. (N0 model.)

T0 all whom, t may concern:

Be it known that I, FREDERICK I-I. EMERY, of Scranton, county ofLackawanna, State of Pennsylvania, have invented certain new and usefulImprovements in Coal-Separators, of which the following is aspecification, reference being had to the accom pan yin gdrawin gs.

The object of my invention is to produce certain improvements in thatclass of coal-` separators illustrated in patents to John R. Richardson,No. 532,427, issued January 8, 1895, and No. 555,185, issued February25, 1896. .In separators of that class the mass to be separated, as ofcoal and slate, is caused by gravity to run down an inclined chute, atthe end of which, striking a deflecting-plate, the mass becomesseparated, owing to the difference between the comparative weights ofthe two metals and the velocity with which the commingled mass iscarried against the deflecting-plate.

In the separation of coal the coal being lighter than the slate bounds agreater distance than the slate. Taking advantage of this fact, the coalis received upon a dischargechute and the slate is allowed to dropbetween the discharge-chute and the de fleetingplate. Owing to themanner in which the mass to be separated is commingled, it is found inpractice that some of the coal is precipitated by the plate, andconsequently by the employment of a single chute a percentage of thecoal would be lost. To provide against this loss, I employ a pluralityof under and over discharge-chutes in proximity to the deflecting-plate,adjusting them at different distances from the deflecting-plate and atdifferent elevations with respectto it. I preferably provide eachunderchute, respectively, at its lower end with a hingeddeflecting-plate which permits further separation of the coal carried bythe slate first separated, and it will be readily seenV by thislarrangement of the chutes and'deiiecting-plates that thecompletely-cleaned coal is carried off on the overchute, while the slateand its percentage of coal lost by the first operation is carried to theuntlerchute, Where by striking its deiiecting-plate it is subjected to asecond separating operation similar to the first.

The operation described, it may be observed, may be repeated as manytimes as it may be necessary to entirely separate the dif-- ferentmaterials which compose the mass to be separated.

In the accompanying drawings, Figure I is a side elevation of myapparatus. Fig. II is a longitudinal section thereof. Fig. III is a topplan view.

Referring to the iigures on the drawings, l indicates the frame sidepieces of my apparatus, which are preferably carried at a suitable angleor inclination by supports or trestles 2. Between the side pieces intheir upper part is provided the receiving-chute 3, which receives thecoal directly from the breaker or the screen.

4 indicates a delecting-plate preferably adjustable in the mannerdescribed in the aboverecited patents.

5 indicates an overchu te and (i an underchute, both located in front ofthe detlectingplate and each longitudinally and vertically adjustablewith respect to the delecting-plate between the frame side pieces l. Theunderchute is provided with a second deflectingplate 7, which dischargestoward a second overchute S and second underchute 9, carried in likemanner with respect to the deectingplate 7 as the chutes 5 and 6 arecarried with respect to the plate 4.

In practice the second underchute 9 may be omitted, or, as abovesuggested, additional deiiecting-plates and additional dischargechutes,either singly or in pairs, may be provided.

Vith respect to the underchutes the mechanism for adjusting them mayconsist,as illustrated, of that shown and described in the above-recitedpatent, No. 555,185.

One form of adjustment mechanism for supporting the overchute consists,as illustrated, of bell-crank levers l0, pivotally united, as by linksll, to the opposite sides of the overchute. Each of the bell-cranklevers is pro-- vided with an axle or rock-shaft l2, which passesthrough the side frame-piece and is movable by means of a hand-lever 13,having a catch 14, that works in a segmental rack l5.

By means of the bell-crank levers 10 in the opposite side f rame-piecesl the overchute may be placed at different distances from thedeliecting-plate 4 and at different elevations with respect to them, asrequired.

IOO

What I claim isl. In a separating apparatus, the combination with aninclined receiving-chute and deiecting-plate at the lower end thereof,of a succession of adjustable under and over chutes arranged in pairsand located in different planes, one chute in each pair being above thatof the deflector and separated therefrom by open spaces, each underchutebeing provided at its lower end with an individual hingeddeflecting-plate, whereby 1naterial from the receivingchute striking itsdeiiecting-plate falls to one or the other chute as determined by therelative specific gravity of the individual particles, substantially asspecified.

other, whereby the chute may be longitudinally and vertically adjusted',substantially as specified.

3. In a coal-separating apparatus, the combination with an inclinedreceiving-chute and deiiecting-plate at the lower end thereof, of aplurality of longitudinally and vertically adjustable under and overchutes arranged in pairs, one chute in each pair being above that of thedeiiector and separated therefrom by open spaces, each underchute beingprovided at its lower end with an individual hinged detiecting plate,whereby material from the receiving-chute striking its deilect ing-platefalls to one or the other chute as determined by the relative specificgravity of the individual particles, and mechanism for adjusting thechutes substantially as specified.

In testimony of all which I have hereunto subscribed my name.

vFREDERICK H. EMERY. XTitnesses:

F. E. SPENCER, THos. AUBREY.

